CN217744127U - Rotary valve component for food processing machine - Google Patents

Abstract

The utility model relates to a food processing field discloses a food processor is with commentaries on classics valve module, including drive arrangement, valve casing and the case that forms flowing back passageway, still include through case terminal surface driven switching-over clutch assembly, with switching-over clutch assembly fixed connection's fluid-discharge tube, the fluid-discharge tube cup joints in the case and can rotate along with switching-over clutch assembly in order to arrange thick liquid level and the position of wasting discharge between, the clutch hole is established to the terminal surface of case, switching-over clutch assembly includes that supporting seat and the elasticity with the coaxial setting of case set up in the slider of supporting seat, the supporting seat has the first state with the synchronous pivoted of case, and the second state that slides with case relative rotation, at first state, slider card goes into the clutch hole, at the second state, slider cunning breaks away from the clutch hole, and slides along the case terminal surface at case rotation in-process, reduce the relative pivoted resistance and frictional force of separation and reunion structure, reduce motor load, reduce the noise that case and fluid-discharge tube rotate the in-process relative friction and produce simultaneously, and improve service life.

Description

Rotary valve assembly for food processing machine

Technical Field

The utility model relates to a food preparation machine field, concretely relates to rotary valve subassembly for food preparation machine.

Background

With the continuous development of science and technology and the improvement of living standard, the food processor is widely applied as a high-efficiency kitchen appliance. The existing food processor generally comprises a main machine and a water tank, wherein the main machine is provided with a processing cup assembly and a rotary valve assembly, and the processes of water inlet, slurry discharge and waste discharge are completed through the rotary valve assembly.

The existing food processor generally adopts a rotary valve component structure as follows: utilize the continuous wave form tooth switching-over structure of axial terminal surface on the case, case and play thick liquid mouth rotate together because the wave form tooth meshing during the rotation, realize driving a thick liquid mouth and rotate, play thick liquid mouth sets up stifled commentaries on classics structure in the particular position, make a thick liquid mouth stop in the particular position and the case still can rotate, make case and play thick liquid mouth synchronous revolution through setting up the wave form tooth meshing, can cause the drive switching-over resistance big, the motor load is big, influences life simultaneously.

CN213332469U discloses a rotary valve assembly structure, which utilizes the axial end face of the reversing clutch assembly to have a waveform tooth structure capable of engaging with each other, so that the valve core and the reversing clutch assembly are kept engaged, thereby driving the slurry outlet nozzle to rotate, the slurry outlet nozzle is specifically provided with a blocking structure, so that the slurry outlet nozzle stays at a specific position, and the valve core can still rotate. This structure has an inherent drawback: wave form tooth structure can drive switching-over clutch assembly and beat from top to bottom under the effect of spring at the rotatory in-process of case, will produce the continuous sound of "clicking" like this, lets the user use for the first time and reachs the machine easily and has broken down and need the guarantee, influences the user and uses experience, and the after sale of the company of serious influence simultaneously needs the improvement.

Disclosure of Invention

In order to solve one or more technical problem among the prior art, or provide a profitable selection at least, the utility model provides a food processor is with changeing valve module, the wave form tooth structure drive switching-over resistance of having solved current commentaries on classics valve module is big, and motor load is big, influences the problem in life-span.

The utility model discloses a food processor is with changeing valve unit spare, in the technical scheme of this application, including drive arrangement, valve casing and the case that forms flowing back passageway, case pivoted sets up inside the valve casing, still include through case terminal surface driven switching-over clutch subassembly, and with switching-over clutch subassembly fixed connection's fluid-discharge tube, the fluid-discharge tube cup joints in the case and can rotate with switching over between thick liquid position and the exhaust position along with switching-over clutch subassembly, the terminal surface of case is equipped with the clutch hole, switching-over clutch subassembly includes that the supporting seat with the coaxial setting of case and elasticity set up in the slider of supporting seat, the supporting seat has the first state with the synchronous pivoted of case, and the second state that slides with case relative rotation, at the first state, slider card goes into the clutch hole, at the second state, slider cunning out the clutch hole, and slide along the case terminal surface at the case rotation in-process.

The rotating valve of the existing food processor generally adopts a waveform tooth structure to perform clutch reversing, the driving reversing resistance is large, the motor load is large, and the service life is prolonged.

In a preferred implementation mode of the rotary valve component for the food processing machine, the end face of the supporting seat is provided with a limiting hole, an elastic piece is arranged in the limiting hole, and the sliding piece can extend out of the limiting hole through the elastic piece part to be clamped with the clutch hole.

The clutch hole is established to the terminal surface of case, and the spacing hole is established to the supporting seat terminal surface, fixes a position the elastic component, and spacing hole plays certain fixed action to the slider simultaneously, and spacing hole and elastic component cooperation realize the flexible butt of slider and case to realize reliable drive and separation and reunion effect.

In a preferred realization mode of the rotary valve component for the food processing machine, the end face of the supporting seat is provided with an annular groove, a limiting hole is arranged on the bottom surface of the annular groove, and the sliding part partially extends out of the annular groove to be clamped with the engaging hole.

The elastic part makes the sliding part partially extend out of the limiting hole, the friction force of the sliding part in the rolling process is very small, the extending process is easily affected by centrifugal force to break away from or deviate to form a supporting seat, the annular groove is arranged on the end face of the supporting seat, the annular groove has a certain height, the limiting hole is arranged on the bottom face of the annular groove, the sliding part cannot break away from the supporting seat when the sliding part partially extends out, the sliding part is limited by the annular groove to be dislocated, and the sliding part is smoothly clamped with the clutch hole on the end face of the valve core.

In a preferred implementation of the rotary valve assembly for a food processor, the annular groove is provided with a lubricant.

The annular groove is internally provided with the lubricant, so that the friction condition between the sliding part and the surface of the supporting seat is improved, the friction force of the sliding part in the rolling process is reduced, the lubricating effect on the sliding part is kept, and the phenomenon that the clutch is reversed due to the fact that the sliding part is blocked when moving is prevented.

In a preferred implementation of the rotary valve assembly for a food processor, the plurality of engagement holes are uniformly arranged in the rotational direction of the valve element, and/or the plurality of sliders are uniformly arranged in the rotational direction of the support base.

When the supporting seat and the valve core rotate synchronously, the sliding part is clamped into the clutch holes, a plurality of clutch holes are uniformly arranged along the rotation direction of the valve core, the probability that the sliding part is smoothly clamped into the clutch holes is increased, and the synchronous rotation of the valve core and the supporting seat is ensured; a plurality of sliding pieces are uniformly arranged along the rotation direction of the supporting seat and matched with the clutch holes; and meanwhile, a plurality of sliding parts and a plurality of clutch holes are uniformly arranged, the clutch transmission distance is the same, and the gaps are uniformly matched, so that the valve core is favorably and accurately aligned.

In a preferred realization of food processor rotary valve subassembly, the supporting seat is equipped with first position stop portion, and the valve casing is equipped with second position stop portion, and first position stop portion and second position stop portion can interfere when the case rotates to with the fluid-discharge tube spacing in thick liquid position or the position of wasting discharge.

When the supporting seat and the valve core are in a first state of synchronous rotation, the first stop part is in contact with the second stop part arranged on the valve casing to interfere rotation of the valve core, the liquid discharge pipe stops rotating due to the stop of the valve casing, the rotation stop position of the liquid discharge pipe is limited while the angle of the supporting seat is controlled, the alignment accuracy of the liquid discharge pipe is ensured, the liquid discharge pipe is limited at a pulp discharge position or a waste discharge position, and the liquid discharge accuracy is improved.

In a preferred implementation mode of the rotary valve assembly for the food processing machine, the valve core is provided with a positioning shaft and a valve core revolution surface, an inlet of the liquid drainage channel is arranged on the valve core revolution surface, an outlet of the liquid drainage channel is arranged on the end face of the valve core, the positioning shaft is arranged on the valve core revolution surface, and the valve shell is axially limited by the positioning shaft.

The inlet of the liquid discharge channel is arranged on the rotary surface of the valve core, so that the liquid discharge channel is conveniently connected with a liquid discharge pipe in an aligned mode; in order to prevent the valve core from shifting in the rotating process, a positioning shaft is arranged on the rotary surface of the valve core, the valve core is rotatably arranged in the valve shell, and the valve core is axially limited by matching the valve shell with the positioning shaft, so that the problem that the valve core cannot be accurately aligned when rotating in the subsequent process is avoided, and meanwhile, the problem that the valve core is unstable due to liquid impact in the water inlet or slurry discharge and waste discharge processes, the position of the valve core is deviated, the driving of the end surface of the valve core on a reversing clutch assembly is influenced, the sealing performance is also influenced, and the slurry discharge and liquid discharge processes are influenced is also avoided; a positioning shaft is arranged to limit the axial position of the valve core, so that the transmission of the valve core is ensured.

In a preferred implementation of the rotary valve assembly for the food processor, the valve casing comprises a casing body and a valve cover, wherein the casing body is used for accommodating the valve core, and a limit groove for axially limiting and positioning the shaft is formed at the joint of the casing body and the valve cover.

Form the spacing groove in the junction during casing and valve gap assembly, carry out the axial through the spacing groove to the location axle spacing, because the location axle carries out the axial to the case spacing, therefore the spacing groove that casing and valve gap formed carries out the secondary spacing through the spacing location axle of axial to the case, avoids the case to beat and carries out the influence to the thick liquid flowing back process of arranging, casing and valve gap natural counterpoint when the assembly form the spacing groove, and simple easy the realization need not additionally to form the groove structure. The limiting groove is formed by matching the valve cover and the shell, and an additional structure is not required to be arranged to limit and position the shaft, so that the integral structure of the food processor is simplified.

In a food processing machine is with the preferred implementation of commentaries on classics valve unit, the supporting seat inner wall is equipped with prevents slow-witted muscle, and the fluid-discharge tube periphery is equipped with prevents slow-witted groove, and supporting seat and fluid-discharge tube are counterpointed through preventing the cooperation installation of slow-witted muscle and preventing slow-witted groove.

With supporting seat inner wall cooperation location during the fluid-discharge tube installation, the inner wall is to the installation of counterpointing and appears easily and can't find suitable position or counterpoint the inaccurate condition, sets up at the supporting seat inner wall and prevents slow-witted muscle, and the fluid-discharge tube periphery sets up prevents slow-witted groove, through preventing slow-witted muscle and preventing slow-witted groove cooperation to ensure that fluid-discharge tube and supporting seat are counterpointed, prevent that the installation dislocation from leading to supporting seat and fluid-discharge tube drive to become invalid, reduce the reliance to subjective judgement in the installation, be favorable to correct assembly efficiency's improvement.

In a food processor is with preferred implementation mode of commentaries on classics valve unit spare, the supporting seat inner wall is equipped with first step face, prevents slow-witted muscle and sets up in first step face, and the fluid-discharge tube is equipped with the second step face, prevents slow-witted groove and sets up in second step face, first step face and the butt of second step face terminal surface.

The fluid-discharge tube is the flexible pipe mostly, takes place easily when the atress and rocks or shift, sets up the step face respectively at supporting seat inner wall and fluid-discharge tube periphery, through the step face cooperation in the counterpoint installation of fluid-discharge tube and supporting seat, forms the axial spacing to the fluid-discharge tube, prevents on the one hand that the fluid-discharge tube pine from taking off, and on the other hand prevents that the fluid-discharge tube from breaking away from the supporting seat, makes flowing back process stability obtain the guarantee.

Drawings

The accompanying drawings, which are described herein, serve to provide a further understanding of the invention and constitute a part of this specification, and the exemplary embodiments and descriptions thereof are provided for explaining the invention without unduly limiting it. In the drawings:

fig. 1 is a schematic structural diagram of a food processor according to an embodiment of the present invention.

Fig. 2 is a schematic structural diagram of the position of the rotary valve assembly according to an embodiment of the present invention.

Fig. 3 is a schematic structural diagram of a rotary valve assembly according to an embodiment of the present invention.

Fig. 4a is a front view of the valve cartridge according to an embodiment of the present invention.

Fig. 4b is a left side view of the embodiment shown in fig. 4 a.

Fig. 4c is a rear view of the embodiment shown in fig. 4 a.

Fig. 4d is a perspective view of the embodiment shown in fig. 4 a.

Fig. 5 is a schematic structural diagram of a supporting base according to an embodiment of the present invention.

Fig. 6 is a schematic structural view of a valve cover according to an embodiment of the present invention.

Fig. 7 is a schematic structural view of a clutching state of the valve core and the supporting seat according to an embodiment of the present invention.

Fig. 8 is a partially enlarged view of fig. 7.

Fig. 9 is a schematic structural view illustrating a sliding state of the valve core and the support seat according to an embodiment of the present invention.

Fig. 10 is a partially enlarged view of fig. 9.

Description of the reference numerals:

1-a grinding cup assembly;

2-a rotary valve assembly;

21-a liquid discharge pipe, 22-a driving device, 23-a control plate, 24-a valve shell, 25-a valve sleeve, 26-a positioning sleeve, 27-a valve core, 28-a reversing clutch assembly, 291-a silica gel pad and 292-a slurry outlet nozzle;

241-shell, 242-valve cover, 243-second stop part, 271-clutch hole, 272-transmission shaft, 273-valve core revolution surface, 274-drainage channel, 275-magnet hole, 281-support seat, 282-sliding part, 283-elastic part;

2731-positioning shaft, 2732-water inlet hole, 2733-pulp outlet, 2734-pulp outlet, 2811-limiting hole, 2812-annular groove, 2813-first stop part, 2814-foolproof rib and 2815-first step surface;

3-slurry receiving cup;

4-residual water box;

and 5-a water tank.

Detailed Description

In order to more clearly explain the overall concept of the present invention, the following detailed description is given by way of example in conjunction with the accompanying drawings.

In order that the above objects, features and advantages of the present application can be more clearly understood, the present application will be described in further detail with reference to the accompanying drawings and detailed description. It should be noted that the embodiments and features of the embodiments of the present application may be combined with each other without conflict.

It should be noted that in the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, however, the present invention may be practiced in other ways than those specifically described herein, and thus the scope of the present invention is not limited by the specific embodiments disclosed below.

In addition, in the description of the present invention, it is to be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "axial", "radial", "circumferential", etc., indicate orientations and positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be construed as limiting the present invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present application, "a plurality" means two or more unless specifically limited otherwise.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; they may be directly connected or indirectly connected through intervening media, or may be connected through the use of two elements or the interaction of two elements. However, the direct connection means that the two bodies are not connected by the transition structure, but connected by the connection structure to form a whole. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

In the present invention, unless otherwise expressly stated or limited, the first feature "on" or "under" the second feature may be directly contacting the first and second features or indirectly contacting the first and second features through an intermediate. In the description of the specification, reference to the description of "one embodiment," "some embodiments," "an example," "a specific example," or "some examples" or the like means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

First, the technical concept of the present invention will be explained. Aiming at the existing food processor: the rotary valve component of the existing food processor generally utilizes a wave-shaped tooth reversing structure with continuous axial end surfaces on a valve core, when the rotary valve component rotates, the valve core and a slurry outlet nozzle rotate together due to the meshing of wave-shaped teeth, so that the slurry outlet nozzle is driven to rotate, and a rotation blocking structure is arranged at a specific position of the slurry outlet nozzle, so that the slurry outlet nozzle stays at the specific position and the valve core can still rotate. The axial end face of the reversing clutch assembly is provided with the waveform tooth structures which can be meshed with each other, so that the valve core and the reversing clutch assembly are kept meshed, the slurry outlet nozzle is driven to rotate, the slurry outlet nozzle is specially provided with a blocking structure, the slurry outlet nozzle stays at a specific position, and the valve core can still rotate. This structure has an inherent drawback: the wave form tooth structure can drive switching-over clutch assembly to beat from top to bottom under the effect of spring at the rotatory in-process of case, will produce the continuous sound of "Da" like this, lets the user use for the first time and reachs the machine easily and has broken down and need the warranty, influences the user and uses experience, and the after sale of company is seriously influenced simultaneously, needs the improvement. The sliding part is arranged to replace the wave-shaped teeth arranged on the rotary valve component in the common food processor, so that sliding friction is changed into rolling friction, the resistance of the clutch structure to relative rotation is reduced, the load of the motor is reduced, meanwhile, the noise generated by the relative friction in the rotation process of the valve core and the liquid discharge pipe is reduced, and the service life is prolonged.

The specific scheme is as follows: as shown in fig. 1-10, a rotary valve assembly for a food processor comprises a driving device 22, a valve housing 24 and a valve core 27 forming a liquid discharge passage 274, the valve core 27 is rotatably disposed inside the valve housing 24, the rotary valve assembly further comprises a reversing clutch assembly 28 driven by an end surface of the valve core 27, and a liquid discharge pipe 21 fixedly connected with the reversing clutch assembly 28, the liquid discharge pipe 21 is sleeved on the valve core 27 and can rotate along with the reversing clutch assembly 28 to switch between a pulp discharge position and a waste discharge position, an engaging hole 271 is disposed on the end surface of the valve core 27, the reversing clutch structure comprises a support seat 281 coaxially disposed with the valve core 27 and a sliding member 282 elastically disposed on the support seat 281, the support seat 281 has a first state of synchronously rotating with the valve core 27 and a second state of relatively rotating and sliding with the valve core 27, in the first state, the sliding member 282 is engaged into the engaging hole 271, and in the second state, the sliding member 282 slides out of the engaging hole 271 and slides along the end surface of the valve core 27 during the rotation of the valve core 27.

In one embodiment, as shown in fig. 1-10, the food processor mainly comprises a crushing cup component 1, a rotary valve component 2, a pulp receiving cup 3, a residual water box 4 and a water tank 5, wherein the rotary valve component 2 is positioned on the lower side surface of the crushing cup component 1, the rotary valve component 2 is connected with the crushing cup component 1 by screws, and the pulp receiving cup 3 and the residual water box 4 are arranged below the rotary valve component 2 and are arranged in a front-back manner; the slurry receiving cup 3, the residual water box 4 and the water tank 5 can be taken out in a drawing mode. The rotary valve assembly 2 comprises a liquid discharge pipe 21, a driving device 22, a control plate 23, a valve casing 24, a valve sleeve 25, a positioning sleeve 26, a valve core 27, a reversing clutch assembly 28, a silica gel pad 291 and a slurry outlet 292; the control board 23 is connected with the driving device 22, and the driving device 22 drives the valve core 27 to rotate to provide power for the rotation of the valve core 27; the valve casing 24 comprises a casing 241 and a valve cover 242, the positioning sleeve 26 is a sealing element, the valve casing 24 is provided with a corresponding groove to be matched with the positioning sleeve 26 to fix the valve sleeve 25, the valve core 27 is positioned in the valve casing 24 and is matched and connected with the valve casing 24 through the valve sleeve 25 and the positioning sleeve 26 to axially limit the valve core 27, meanwhile, the sealing performance between the valve core 27 and the valve casing 24 is ensured, and the valve core 27 is prevented from jumping to influence the rotation process; the reversing clutch assembly 28 is fixedly connected with the drain pipe 21, the end face of the reversing clutch assembly 28 is abutted against the end face of the valve core 27, when the driving device 22 drives the valve core 27 to rotate, the valve core 27 drives the reversing clutch assembly 28 to synchronously rotate, the drain pipe 21 is sleeved on the valve core 27 and can rotate along with the reversing clutch assembly 28, and switching is carried out between a pulp discharge position and a waste discharge position; the valve cover 242 is abutted to the grout outlet 292 through the silica gel pad 291, so that the sealing performance between the valve cover 242 and the grout outlet 292 is ensured, and leakage is prevented.

Besides, the end face of the valve core 27 is provided with a clutch hole 271, the reversing clutch assembly 28 comprises a support seat 281 coaxial with the valve core 27 and a sliding part 282 elastically arranged on the support seat 281, when the driving device 22 drives the valve core 27 to rotate, the valve core 27 drives the reversing clutch assembly 28 to synchronously rotate, the support seat 281 is in a first state of synchronously rotating with the valve core 27, and at this time, the sliding part 282 is clamped into the clutch hole 271; when the support seat 281 is in the second state of relative rotational sliding movement with respect to the spool 27, the slider 282 slips off the clutch hole 271 and slides along the end surface of the spool 27 during rotation of the spool 27, reducing frictional force and rotational resistance and reducing noise generated during rotation of the spool 27.

In one embodiment, as shown in fig. 3 to 5, the valve core 27 is provided with a positioning shaft 2731 and a transmission shaft 272, the valve housing 24 includes a housing 241 and a valve cover 242, a limiting groove is formed at an assembly joint of the housing 241 and the valve cover 242, the positioning shaft 2731 provided on the valve core 27 is axially limited, meanwhile, the positioning shaft 2731 is matched with the valve housing 24 to axially limit the valve core 27 and position a rotation center of the valve core 27, the valve cover 242 and the housing 241 are matched to form the limiting groove, other structures for limiting the valve core 27 are not required, and the structure is simple and easy to implement; the driving device 22 drives the valve core 27 to rotate through the transmission shaft 272, and the middle of the valve core 27 is hollow to form a liquid discharge channel 274; the valve core 27 is provided with a valve core revolution surface 273, the positioning shaft 2731 is arranged on the valve core revolution surface 273, meanwhile, the valve core revolution surface 273 is provided with a water inlet hole 2732, a pulp outlet 2733 and a pulp discharge port 2734, the water inlet hole 2732 is connected with the water tank 5 through one end of a pipeline, the other end of the pipeline is connected with the crushing cup assembly 1, water in the water tank 5 is introduced into the crushing cup assembly 1, the pulp outlet 2733 and the pulp discharge port 2734 are communicated with the liquid discharge channel 274, an inlet of the liquid discharge channel 274 is arranged on the valve core revolution surface 273, and an outlet of the liquid discharge channel 274 is arranged on the end surface of the valve core 27; the valve core 27 is provided with a magnet hole 275, and an axial surface for positioning a valve core rotating surface 273 and a water inlet channel; the valve core 27 has a clutch hole 271 on the end surface, and the clutch hole 271 realizes the clutch of the support seat 281 and the valve core 27 rotating together.

In one embodiment, as shown in fig. 3-4, the supporting seat 281 is provided with a limiting hole 2811, an elastic piece 283 is arranged in the limiting hole 2811, the limiting hole 2811 locates the elastic piece 283 and fixes the sliding piece 282, during the rotation of the supporting seat 281, the sliding piece 282 can partially extend out of the limiting hole 2811 through the elastic piece 283 to be clamped with the clutch hole 271, and the flexible abutment of the sliding piece 282 and the valve core 27 is realized through the cooperation of the limiting hole 2811 and the elastic piece 283, so as to realize reliable driving and clutch effects; the engaging holes 271 may be provided in plural and uniformly arranged along the rotation direction of the valve element 27, and similarly, the sliding members 282 may also be provided in plural and uniformly arranged along the rotation direction of the supporting seat 281, so that the distances of the clutch transmissions are the same through the uniform matching of the clearances between the plural sliding members 282 and the engaging holes 271, which is beneficial to the accurate alignment of the valve element 27.

In one embodiment, as shown in fig. 3-5, an annular groove 2812 is provided on an end surface of the supporting seat 281, the annular groove 2812 has a certain height, so as to reduce a frictional contact area when the end surface of the supporting seat 281 rotates, a limiting hole 2811 is provided on a bottom surface of the annular groove 2812, an elastic element 283 and a sliding element 282 are provided in the limiting hole 2811, the elastic element 283 allows the sliding element 282 to partially protrude out of the limiting hole 2811, so that a friction force is small during a rolling process of the sliding element 282, the protruding process is easily separated or deviated by a centrifugal force to the supporting seat 281, the annular groove 2812 is provided on the end surface of the supporting seat 281, the annular groove 2812 has a certain height, the limiting hole 2811 is disposed on the bottom surface of the annular groove 2812, so that the sliding element 282 does not separate from the supporting seat 281 when partially protruding, the annular groove 2812 is used to limit the sliding element 282 from being dislocated, and is smoothly engaged with the engaging hole 271 on the end surface of the valve element 27. Meanwhile, the annular groove 2812 is internally provided with lubricant, so that the friction condition between the sliding part 282 and the surface of the supporting seat 281 is improved, the friction force of the sliding part 282 in the rolling process is reduced, the lubricating effect on the sliding part 282 is kept, and the phenomenon that the clutch is reversed due to the fact that the sliding part 282 is jammed when moving is avoided.

In one embodiment, as shown in fig. 3-6, the support seat 281 is provided with a first stop portion 2813, the valve housing 24 is provided with a second stop portion 243, when the driving device 22 drives the valve core 27 to rotate, the first stop portion 2813 and the second stop portion 243 interfere with each other when the valve core 27 rotates, the stop position of the rotation of the drain pipe 21 is limited while the angle of the support seat 281 is controlled, the support seat 281 is limited at the draining position or the waste position, the drain pipe 21 stops rotating due to the stop of the valve housing 24, and the accurate alignment of the drain pipe 21 is ensured. Supporting seat 281 inner wall is equipped with prevents slow-witted muscle 2814, drain pipe 21 periphery is equipped with prevents slow-witted groove, with supporting seat 281 inner wall cooperation location during the installation of drain pipe 21, the condition that suitable position or counterpoint are inaccurate appears finding easily to the installation of inner wall counterpoint, prevent that slow-witted muscle 2814 acts on before the accurate counterpoint of drain pipe 21, cooperate with preventing slow-witted groove through preventing slow-witted muscle 2814, in order to ensure drain pipe 21 and supporting seat 281 counterpoint, prevent that the installation dislocation leads to supporting seat 281 and drain pipe 21 drive to become invalid, reduce the reliance to subjective judgement in the installation, be favorable to the improvement of correct assembly efficiency. In addition, a first step surface 2815 is arranged on the inner wall of the supporting seat 281, a second step surface is arranged on the liquid discharge pipe 21, the fool-proof rib 2814 is arranged on the first step surface 2815, the fool-proof groove is arranged on the second step surface, the first step surface 2815 and the second step surface are abutted on the end surfaces during alignment installation to form axial limiting on the liquid discharge pipe 21, and the liquid discharge pipe 21 is prevented from loosening in the rotation process or separating from the supporting seat 281 when being impacted by liquid.

The technical solution protected by the present invention is not limited to the above-mentioned embodiments, and it should be pointed out that the combination of the technical solution of any one embodiment and the technical solutions of one or more other embodiments is within the protection scope of the present invention. Although the invention has been described in detail with respect to the general description and the specific embodiments, it will be apparent to those skilled in the art that modifications and improvements can be made based on the invention. Therefore, such modifications and improvements are intended to be within the scope of the invention as claimed.

Claims (10)

1. The utility model provides a food processing machine is with changeing valve module, includes drive arrangement, valve casing and the case that forms flowing back passageway, case pivoted set up in inside the valve casing, its characterized in that still includes through case terminal surface driven switching-over clutch subassembly, and with switching-over clutch subassembly fixed connection's fluid-discharge tube, the fluid-discharge tube cup joint in the case can follow switching-over clutch subassembly rotates in order to arrange thick liquid position and waste discharge position between, the terminal surface of case is equipped with the clutch hole, switching-over clutch subassembly include with the supporting seat and the elasticity of the coaxial setting of case set up in the slider of supporting seat, the supporting seat have with the synchronous pivoted first state of case, and with the relative rotation second state that slides of case the first state, the slider card is gone into the clutch hole the second state, the slider slippage the clutch hole to follow in case rotation process the case terminal surface slides.

2. The rotary valve assembly as claimed in claim 1, wherein the support base has a hole at an end thereof, and an elastic member is disposed in the hole, and the sliding member is capable of passing through the elastic member and protruding out of the hole to engage with the engaging hole.

3. The rotary valve assembly as claimed in claim 2, wherein the supporting seat has an annular groove formed at an end surface thereof, the limiting hole is formed at a bottom surface of the annular groove, and the sliding member extends from the annular groove to engage with the engaging hole.

4. A rotary valve assembly for a food processor machine according to claim 3 wherein the annular groove is provided with a lubricant.

5. The rotary valve assembly as claimed in claim 1, wherein the plurality of the engagement holes are uniformly arranged in a rotational direction of the valve core, and/or the plurality of the sliding members are uniformly arranged in a rotational direction of the support seat.

6. The rotary valve assembly as claimed in claim 1, wherein the support seat has a first stop portion, the valve housing has a second stop portion, and the first and second stop portions are capable of interfering with each other when the valve core rotates to limit the drain pipe to a discharge position or a waste position.

7. The rotary valve assembly for food processor as claimed in claim 1, wherein the valve core is provided with a positioning shaft and a valve core revolution surface, the inlet of the liquid discharge passage is provided on the valve core revolution surface, the outlet of the liquid discharge passage is provided on the valve core end surface, the positioning shaft is provided on the valve core revolution surface, and the valve housing axially limits the positioning shaft through the positioning shaft.

8. The rotary valve assembly as claimed in claim 7, wherein the valve housing comprises a housing formed to accommodate the valve core and a valve cover, and a position of the connection between the housing and the valve cover forms a position-limiting groove for axially limiting the positioning shaft.

9. The rotary valve assembly for food processing machine according to claim 1, wherein the inner wall of the support seat is provided with a fool-proof rib, the periphery of the drain pipe is provided with a fool-proof groove, and the support seat and the drain pipe are installed and aligned through the cooperation of the fool-proof rib and the fool-proof groove.

10. The rotary valve assembly as claimed in claim 9, wherein the inner wall of the support seat has a first step surface, the fool-proof rib is disposed on the first step surface, the drain pipe has a second step surface, the fool-proof groove is disposed on the second step surface, and the first step surface and the second step surface abut against each other.

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